<template>
	<div>
		<!-- 面包屑导航区域 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>商品管理</el-breadcrumb-item>
			<el-breadcrumb-item>添加商品</el-breadcrumb-item>
		</el-breadcrumb>

		<el-card>
			<el-alert title="添加商品信息" type="info" center show-icon :closable="false">
			</el-alert>
			<!-- 步骤条 -->
			<el-steps :space="200" :active="activeIndex-0" finish-status="success" align-center>
				<el-step title="基本信息"></el-step>
				<el-step title="商品参数"></el-step>
				<el-step title="商品属性"></el-step>
				<el-step title="商品图片"></el-step>
				<el-step title="商品内容"></el-step>
				<el-step title="完成"></el-step>
			</el-steps>
			<el-form :model="addForm" :rules="addFormrules" ref="addFormref" label-width="100px" label-position="top">
				<el-tabs v-model="activeIndex" :tab-position="'left'" :before-leave="beforeTabLeave" @tab-click="tabclicked">
					<el-tab-pane label="基本信息" name="0">
						<el-form-item label="商品名称" prop="goods_name">
							<el-input v-model="addForm.goods_name"></el-input>
						</el-form-item>
						<el-form-item label="商品价格" prop="goods_price">
							<el-input v-model="addForm.goods_price" type="number"></el-input>
						</el-form-item>
						<el-form-item label="商品数量" prop="goods_number">
							<el-input v-model="addForm.goods_number" type="number"></el-input>
						</el-form-item>
						<el-form-item label="商品重量" prop="goods_weight">
							<el-input v-model="addForm.goods_weight" type="number"></el-input>
						</el-form-item>
						<el-form-item prop="goods_cat">
							<span>选择商品分类：</span>
							<el-cascader expand-trigger="hover" v-model="addForm.goods_cat" :options="cateList" :props="cadeprops" @change="parentcatechange"
							 clearable change-on-select="false" style="width: 251px;">
							</el-cascader>
						</el-form-item>
					</el-tab-pane>
					<el-tab-pane label="商品参数" name="1">
						<el-form-item :label="item.attr_name" v-for="(item,i) in manytabdata" :key="item.attr_id">
							  <el-checkbox-group v-model="item.attr_vals" >
							    <el-checkbox :label="cb" v-for="(cb,i) in item.attr_vals" border></el-checkbox>
							  </el-checkbox-group>
						</el-form-item>
					</el-tab-pane>
					<el-tab-pane label="商品属性" name="2">
						<el-form-item :label="item.attr_name" v-for="item in onlytabdata" :key="item.attr_id">
							  <el-input v-model="item.attr_vals"></el-input>
						</el-form-item>
					</el-tab-pane>
					<el-tab-pane label="商品图片" name="3">
						<el-upload
						  :action="uploadURL"
						  :on-preview="handlePreview"
						  :on-remove="handleRemove"
						  list-type="picture" :headers="headerobj" :on-success="headerSuccess">
						  <el-button size="small" type="primary">点击上传</el-button>
						</el-upload>
					</el-tab-pane>
					<el-tab-pane label="商品内容" name="4">
						<quill-editor v-model="addForm.goods_introduce"></quill-editor>
						<el-button type="primary" class="btnadd" @click="add">添加商品</el-button>
					</el-tab-pane>
				</el-tabs>
			</el-form>
		</el-card>
		<el-dialog
		  title="图片预览"
		  :visible.sync="previewVisible"
		  width="50%">
		  <img :src="PreviewPath" class="qw" />
		</el-dialog>
	</div>
</template>

<script>
	import _ from 'lodash'
	
	export default {
		data() {
			return {
				previewVisible:false,
				activeIndex: '0',
				cadeprops:{
					value: 'cat_id',
					label: 'cat_name',
					children: 'children'	
				},
				headerobj:{
					Authorization:window.sessionStorage.getItem('token')
				},
				uploadURL:'http://127.0.0.1:8888/api/private/v1/upload',
				PreviewPath:'',
				manytabdata:[],
				onlytabdata:[],
				addForm: {
					goods_name:'',
					goods_price:0,
					goods_number:0,
					goods_weight:0,
					goods_cat:[],
					pics:[],
					goods_introduce:'',
					attrs:[]
				},
				cateList:[],
				addFormrules: {
					goods_name: [{
							required: true,
							message: '请输入商品名称',
							trigger: 'blur'
						}
					],
					goods_price: [{
							required: true,
							message: '请输入商品价格',
							trigger: 'blur'
						}
					],
					goods_number: [{
							required: true,
							message: '请输入商品数量',
							trigger: 'blur'
						}
					],
					goods_weight: [{
							required: true,
							message: '请输入商品重量',
							trigger: 'blur'
						}
					],
					goods_cat: [{
							required: true,
							message: '请输入商品分类',
							trigger: 'blur'
						}
					]
				}
			}
		},
		created() {
			this.getcateList()
		},
		methods: {
			async getcateList() {
				const {
					data: res
				} = await this.$http.get('categories')
				if (res.meta.status != 200) {
					return this.$message.error("获取商品分类列表失败")
				} else {
					this.cateList = res.data
				}
			},
			headerSuccess(response){
				const picInfo={pic:response.data.tmp_path}
				this.addForm.pics.push(picInfo)
			},
			handleRemove(file){
				const filepath={pic:file.data.tmp_path}
				const i= this.addForm.pics.findIndex(x=>x.pic===filepath)
				this.addForm.pics.splice(i,1)
			},
			handlePreview(file){
				this.PreviewPath=file.response.data.url
				this.previewVisible=true
			},
			handleRemove(){
				
			},
			add(){
				this.$refs.addFormref.validate(async valid=>{
					if(!valid){
						return this.$message.error("请填写必要的表单项")
					}else{
						const form= _.cloneDeep(this.addForm)
						form.goods_cat=form.goods_cat.join(',')
						this.manytabdata.forEach(item=>{
							const newInfo={
								attr_id:item.attr_id,
								attr_value:item.attr_vals.join(' ')
							}
							this.addForm.attrs.push(newInfo)
						})
						this.onlytabdata.forEach(item=>{
							const newInfo={
								attr_id:item.attr_id,
								attr_value:item.attr_vals
							}
							this.addForm.attrs.push(newInfo)
						})
						form.attrs=this.addForm.attrs
						console.log(form)
						const {data:res}= await this.$http.post('goods',form)
						console.log(res)
						console.log(res.data)
						if(res.meta.status!=201){
							return this.$message.error("添加商品失败")
						}else{
							this.$message.success("添加商品成功")
							this.$router.push('/goods')
						}
					}
					
				})
			},
			async tabclicked(){
				if(this.activeIndex=='1'){
					const {data:res}= await this.$http.get(`categories/${this.cardid}/attributes`,{params:{sel:'many'}})
					if(res.meta.status!=200){
						return this.$message.error("获取动态参数列表失败")
					}else{
						res.data.forEach(item=>{
							item.attr_vals=
							item.attr_vals.length== 0?[]
							:item.attr_vals.split(' ')
						})
						this.manytabdata=res.data
					}
				}else if(this.activeIndex=='2'){
					const {data:res}= await this.$http.get(`categories/${this.cardid}/attributes`,{params:{sel:'only'}})
					if(res.meta.status!=200){
						return this.$message.error("获取动态参数列表失败")
					}else{
						res.data.forEach(item=>{
							item.attr_vals=
							item.attr_vals.length== 0?[]
							:item.attr_vals
						})
						this.onlytabdata=res.data
					}
				}
			},
			parentcatechange(){
				if(this.addForm.goods_cat.length!==3){
					this.addForm.goods_cat=[]
				}
			},
			beforeTabLeave(activeName, oldActiveName){
				if(oldActiveName=='0'&&this.addForm.goods_cat.length!==3){
					this.$message.error("请先选择商品分类")
					return false
				}
			}
		},
		computed:{
			cardid(){
				if(this.addForm.goods_cat.length==3){
					return this.addForm.goods_cat[2]
				}else{
					return null
				}
			}
		}
	}
</script>

<style>
.el-checkbox{
	margin: 0 10px 0 0 !important;
}
.qw{
	width: 100%;
}
.el-tab-pane.btnadd{
	margin-top: 25px;
}
</style>
